* [bugfix]: Handle top-level songs for Jellyfin
If a song is at the top level of a music folder, Jellyfin will not
group that into an album (See https://jellyfin.org/docs/general/server/media/music/).
This PR introduces a few changes:
- Gives tracks with no album ID a special route (`/dummy/${id}`)
- Gives a new route for dummy albums, warning about the error. This is designed to look _like_ the album detail page
* `are are` > `are`
* revert name changes
